Asymmetric Fano resonance and bistability in a two-ring resonator optical switch with high extinction ratio and low switching threshold
| Autor: | Landobasa Yosef Mario, Mee Koy Chin |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Physics
Guided wave testing Extinction ratio Bistability business.industry Fano resonance Nonlinear optics Astrophysics::Cosmology and Extragalactic Astrophysics Optical switch Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optical bistability Resonator Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | Optical and Quantum Electronics. 38:1143-1150 |
| ISSN: | 1572-817X 0306-8919 |
| DOI: | 10.1007/s11082-006-9044-6 |
| Popis: | We propose a two-ring resonator configuration that can provide optical switching with both high extinction ratio (ER) and low switching threshold. The achievable input threshold is n2IIN ~ 10−5 or smaller, which is one order lower than that of the conventional one-ring configuration, while maintaining an ER of at least 10dB over a 10-GHz (0.1 nm) optical bandwidth. This performance is enabled by using an asymmetric Fano resonance as opposed to the usual symmetric resonance. The low switching threshold and the high ER are related to the sharpness and the asymmetricity of the Fano resonance, respectively. |
| Databáze: | OpenAIRE |
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